data_binding 0.2.1 data_binding: ^0.2.1 copied to clipboard
Library for data binding.
import 'package:data_binding/base_widget.dart';
import 'package:data_binding/command.dart';
import 'package:data_binding/data_binding.dart';
import 'package:flutter/material.dart';
import 'view_model.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: MyHomePage(title: 'example for data binding'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
final String title;
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
final _viewModel = ViewModel();
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
binding(_viewModel.label, LabelWidgetBuilder()),
binding(_viewModel.clickNumber, NumberWidgetBuilder()),
binding(_viewModel.clickNumber, NumberWidgetBuilder()),
],
),
),
floatingActionButton: FloatingActionButton(
onPressed: () {
_viewModel.handle(Command(CommandName.INCREASE.toString(), 1));
},
tooltip: 'Increment',
child: Icon(Icons.add),
),
);
}
}
class LabelWidgetBuilder extends BindingWidgetBuilder<String> {
@override
Widget build(String label, {Widget child, BuildContext context}) =>
Text('$label');
}
class NumberWidgetBuilder extends BindingWidgetBuilder<ClickNumber> {
@override
Widget build(ClickNumber clickNumber, {Widget child, BuildContext context}) =>
Text(
'${clickNumber.number}',
style: TextStyle(
fontSize: 100,
color: Color(clickNumber.color),
),
);
}